Some of my opinion about your app:
Great initiative to start an ERP app using Yii Framework. It's will be easier for use to customize it if we want to use it. Because we already understand the concept of Yii.

You should hire an UI designers if you want people use your web application. For example it's weird if you put a login menu in dropdown menu. There is a reason why Facebook & Twitter put login menu on the right top of page. Because people will try to looking on that place first for login menu before trying to see on other place. But why you hide it on dropdown menu. A bad UI will throw away your users before they actually use it.

Don't use a "Faceebook bar" it's annoying actually. Most people hate it if your application doesn't have a realtime feature like chat. It's better using notification bar.

Anyway.. good job. Hope it will finish soon. So we have an ERP application based on Yii.

Cool, you can make ERP based on Yii, a bit review from me:
- I don't understand what the purpose of the textfield and 'Submit' button at the bar, when I click the button without fill anything in the textfield it redirect to absstatus view. But when I fill it with any text, it's going messy
- why don't beautify the url, it's still using index.php?r=...
- agree with tyohan n yiqing95, need UI designer to make it looks better

I'm also developing kind of an erp-system, but with a special focus on rental companies... so thank you for sharing a demo for your application! gives me a nice impression on how you implement functions!

Thanks siskalandre for sharing this demo with us. There has been put an incredible lot of time in producing such an application. It all has the same look and feel so it has been build with the same vision from the start (at least that is my deduction). Wether you like the design or not, it all comes down with a demo to: look at what is possible, learn what you like and what not, draw your conclusions how you would have prepared such a system.